Your Details
Fill this quick form and tap Calculate My Macros.
Formulas based on Mifflin–St Jeor for BMR and standard activity multipliers. Macro splits vary by goal; adjust later if desired.
Your Macro Results
See your daily calorie target (TDEE) and macronutrient split (protein, carbs, fat). Adjust your activity and goal to refine results.
Not calculated yet — fill the calculator to generate your personalized targets.Comprehensive Macros FAQ
What does a macro calculator do?▾
A macro calculator helps you estimate the right amounts of protein, carbohydrates, and fat you should eat each day based on your age, sex, height, weight, activity level, and fitness goal (lose, maintain, gain).
Example: An office worker in New York who lifts weights 4 times per week may get results like:
- Calories (TDEE): 2,400 kcal/day
- Protein: 150 g
- Carbs: 270 g
- Fat: 70 g
How do I calculate my daily macros for weight loss?▾
Start with your TDEE (Total Daily Energy Expenditure) and apply a calorie deficit (typically 10–20%). Then split calories into macros:
- Protein: ~1 g per pound of bodyweight (supports muscle retention)
- Fat: ~25–30% of calories
- Carbs: Fill the rest
Example: A 35-year-old Chicago woman, 150 lbs, lightly active:
- TDEE ≈ 1,900 kcal
- Weight-loss target = 1,600 kcal
- Macros ≈ 150 g protein, 150 g carbs, 45 g fat
What is the best macro ratio for fat loss vs muscle gain?▾
Fat loss (cutting): Higher protein, moderate carbs, moderate fat. Common split: 40% protein / 30% carbs / 30% fat.
Muscle gain (bulking): Higher carbs, moderate protein, moderate fat. Example: 25% protein / 50% carbs / 25% fat.
Example: A 28-year-old San Francisco male, 170 lbs, training 5x/week:
Bulking: 2,900 kcal → 180 g protein, 365 g carbs, 80 g fat.
How accurate are macro calculators?▾
Macro calculators provide estimates, not exact numbers. Your metabolism, stress, sleep, and genetics also affect calorie burn. Use the calculator as a starting point, then adjust based on progress (weight trend, energy, gym performance).
Do I need to count macros or just calories?▾
Both matter:
- Calories control weight gain/loss
- Macros control body composition (how much muscle vs fat you keep)
For instance, two 2,000-calorie diets can produce different results if one has 80 g protein vs 150 g protein.
How do you adjust macros for exercise days vs rest days?▾
Many urban gym-goers follow carb cycling:
- Training day: higher carbs, moderate protein, lower fat
- Rest day: lower carbs, higher fat, steady protein
Example: A Brooklyn professional doing CrossFit 3x/week:
- Training: 2,300 kcal (160 g protein, 250 g carbs, 65 g fat)
- Rest: 2,100 kcal (160 g protein, 150 g carbs, 90 g fat)
What are good macros for a high-protein diet?▾
High-protein diets usually set protein at 1.0–1.2 g/lb of bodyweight.
Example: A Los Angeles woman, 140 lbs, doing Pilates:
- Calories: 1,800
- Protein: 150–170 g
- Carbs: 150 g
- Fat: 50 g
How do I calculate macros for a keto diet?▾
Keto macros:
- Carbs: 5–10%
- Protein: 20–25%
- Fat: 65–75%
Example: A Dallas man, 200 lbs:
- Calories: 2,200
- Keto macros: 25 g carbs, 120 g protein, 160 g fat
What macros should I eat if I'm vegetarian or vegan?▾
You can hit protein goals with tofu, tempeh, lentils, beans, seitan, and plant protein powders.
Example: A Seattle vegan, 160 lbs, active lifestyle:
- Calories: 2,100
- Macros: 140 g protein, 220 g carbs, 55 g fat
Can a macro calculator help with intermittent fasting?▾
Yes. The eating window changes (e.g., 16:8 IF), but your daily macros remain the same. A macro calculator ensures you still meet nutrition needs within fewer meals.
What's the difference between macros for men and women?▾
Differences come from body composition and hormone profiles:
- Men usually require more calories/carbs
- Women often need more dietary fat for hormonal health
How do macros change for bulking vs cutting?▾
- Bulking (muscle gain): Add a 10–15% calorie surplus, carbs up
- Cutting (fat loss): 15–20% calorie deficit, protein up
Do city lifestyles affect macro needs?▾
Yes. Urban lifestyles often mean sedentary office work + short intense workouts.
- Office worker → lower daily activity factor
- Commuting by bike or long city walks → higher calorie burn
How do macros relate to TDEE and BMR?▾
- BMR (Basal Metabolic Rate): calories at complete rest
- TDEE: BMR × activity factor
- Macros: split of TDEE into protein, carbs, fats
How often should I recalculate my macros?▾
Every 4–6 weeks or whenever your weight changes by 5+ lbs, or your activity level changes.
How do I track macros easily?▾
- Food diary apps (MyFitnessPal, Cronometer)
- Scanning nutrition labels
- Prepping meals with measured portions
Can I use a macro calculator for athletic training?▾
Yes. Runners, CrossFitters, and lifters all benefit.
- Endurance athletes = more carbs
- Strength athletes = higher protein
- CrossFit = balance both
Do macro calculators account for age and metabolism?▾
Yes. Older adults may need slightly fewer calories but higher protein to preserve lean mass.
Example macro targets for a 30-year-old office worker in the US?▾
Boston man, 30 y/o, 175 lbs, lifts 3x/week:
- TDEE: ~2,400 kcal
- Weight-loss target: 2,000 kcal
- Macros: 160 g protein, 190 g carbs, 65 g fat
Are macros better for sustainable weight loss than fad diets?▾
Yes. Instead of fad diets, macros let you eat flexibly while hitting calorie and nutrient targets. It's why IIFYM (If It Fits Your Macros) is popular in urban fitness communities.